No. But apparently reboots are the current fad in Hollywood these days. Why come up with something original when you can just take an old concept, change a few details and sell it again?

Its always been the "fad" in Hollywood, probably going back to the start of the 20th Century. They like proven properties.

Wouldn't setting a new Star Trek film or series "post-Nemesis" also be "taking an old concept, changing a few details and selling it again"?

There's a large difference between a sequel and just taking all the same players and having them play a slightly different game.

Which is what every Star Trek series after TOS did. Look at each character in TNG, DS9, VOY and ENT and you will see the "DNA" of the TOS characters. Any post-Nemesis series/movie would do the same.

A sequel is just a film set after the events of a previous film. Before some one coined the term "prequel", all it had to be was part of the same series of films, irrelevant of time frame or characters.